00001 // $Id: DbiTimer.h,v 1.3 2003/02/27 16:16:29 west Exp $ 00002 00003 #ifndef DBITIMER 00004 #define DBITIMER 00005 00007 // DbiTimer // 00008 // // 00009 // Package: Dbi (Database Interface). // 00010 // // 00011 // N. West 01/2002 // 00012 // // 00013 // Concept: Simple timer record query progress and final times. // 00014 // // 00015 // Purpose: To find out why this is all soooo sssllloooowwww! // 00016 // // 00018 00019 #include <string> 00020 00021 #include "TStopwatch.h" 00022 #include "DatabaseInterface/DbiFieldType.h" 00023 00024 class DbiTableMetaData; 00025 00026 class DbiTimer 00027 { 00028 00029 public: 00030 00031 // Constructors and destructors. 00032 DbiTimer(); 00033 virtual ~DbiTimer(); 00034 00035 // State testing member functions 00036 00037 // State changing member functions 00038 void RecBegin(string tableName, UInt_t rowSize); 00039 void RecEnd(UInt_t numRows); 00040 void RecFillAgg(Int_t aggNo); 00041 void RecMainQuery(); 00042 void Resume(); 00043 void StartSubWatch(UInt_t subWatch); 00044 void Suspend(); 00045 00046 // Global timer used for all queries to the DBI. 00047 00048 private: 00049 00050 enum QueryStage { kPassive, kInitialQuery, kMainQuery }; 00051 enum { kMaxSubWatch = 4 }; // Must be > 0. 00052 00053 // Data members 00054 00055 Int_t fCurSubWatch; // Current SubWatch or -1 if disabled. 00056 UInt_t fRowSize; // Size of row object 00057 QueryStage fQueryStage; // Query stage 00058 TStopwatch fSubWatches[kMaxSubWatch]; // Partial timers 00059 string fTableName; // Current table 00060 TStopwatch fWatch; // Timer 00061 00062 // Removed: ClassDef(DbiTimer,0) // Simple query timer 00063 00064 }; 00065 00066 00067 #endif // DBITIMER 00068
1.7.4